.page-contact {
  --contact-sticky: calc(var(--header-h) + 28px);
  --contact-gap: clamp(20px, 3vw, 40px);
  background: var(--bg);
  color: var(--text);
}

.page-contact .page-shell {
  padding-top: clamp(14px, 2.6vw, 26px);
}

/* ---------- 首屏：非对称双栏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  margin-top: clamp(14px, 2.4vw, 26px);
}

.page-contact .contact-hero__copy h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.4vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.015em;
  margin: 10px 0 0;
  max-width: 20ch;
  color: var(--cream-100);
}

.page-contact .contact-hero__lead {
  margin: 18px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--text-dim);
  max-width: 56ch;
}

.page-contact .engage-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .engage-list li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-panel);
  font-size: 13px;
  color: var(--cream-300);
  letter-spacing: 0.04em;
}

.page-contact .engage-list__no {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--orange-500);
  letter-spacing: 0.08em;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .contact-hero__panel {
  position: relative;
  padding: 24px 20px 22px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--ink-800) 0%, var(--ink-900) 68%);
  box-shadow: 0 18px 40px -30px rgba(0, 0, 0, 0.9);
}

.page-contact .contact-hero__panel .update-tag {
  top: 0;
  right: 0;
}

.page-contact .dial-list {
  margin: 16px 0 0;
  display: grid;
  gap: 2px;
}

.page-contact .dial-list__row {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .dial-list__row:last-child {
  border-bottom: 0;
}

.page-contact .dial-list dt {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.page-contact .dial-list dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: clamp(14px, 1.7vw, 16px);
  color: var(--cream-100);
  word-break: break-all;
}

.page-contact .dial-note {
  margin: 16px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--cyan-400);
  font-size: 13px;
  line-height: 1.7;
  color: var(--cream-300);
}

.page-contact .contact-hero__media {
  margin-top: clamp(22px, 3.4vw, 40px);
}

.page-contact .contact-hero__media img {
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 双栏外壳 ---------- */
.page-contact .contact-shell {
  display: grid;
  gap: clamp(22px, 3vw, 44px);
  margin-top: clamp(28px, 4vw, 52px);
  min-width: 0;
}

.page-contact .contact-main {
  min-width: 0;
}

.page-contact .contact-index {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-panel);
  padding: 18px 16px;
}

.page-contact .contact-index .toc__title {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber-400);
  margin: 0 0 12px;
}

.page-contact .contact-index .toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .contact-index .toc__link {
  display: block;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  font-size: 14px;
  color: var(--cream-300);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-contact .contact-index .toc__link:hover,
.page-contact .contact-index .toc__link:focus-visible,
.page-contact .contact-index .toc__link[aria-current] {
  color: var(--cream-100);
  border-left-color: var(--cyan-400);
  background: rgba(54, 242, 216, 0.07);
}

.page-contact .contact-index__foot {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-data);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: 0.05em;
  color: var(--text-mute);
}

/* ---------- 区块标题 ---------- */
.page-contact .contact-block {
  border-top: 1px solid var(--line);
  padding-top: clamp(22px, 3vw, 34px);
}

.page-contact .contact-block:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .contact-block h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 8px 0 0;
  color: var(--cream-100);
}

.page-contact .contact-block__intro {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
}

/* ---------- 合作方向 ---------- */
.page-contact .direction {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 18px;
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange-500);
  border-radius: var(--radius);
  background: var(--bg-panel);
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-contact .direction:hover {
  transform: translateY(-2px);
  border-left-color: var(--cyan-400);
  box-shadow: 0 16px 32px -26px rgba(0, 0, 0, 0.95);
}

.page-contact .direction__no {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber-400);
}

.page-contact .direction__body h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.4vw, 26px);
  letter-spacing: -0.005em;
  margin: 0 0 8px;
  color: var(--cream-100);
}

.page-contact .direction__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-contact .tick-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .tick-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cream-300);
}

.page-contact .tick-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--cyan-400);
  font-family: var(--font-data);
}

/* ---------- 流程 ---------- */
.page-contact .flow-figure {
  margin: 22px 0 0;
}

.page-contact .flow-figure img {
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .flow-svg {
  display: none;
  width: 100%;
  height: auto;
  margin: 22px 0 6px;
}

.page-contact .step-grid {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .step {
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-raise);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-contact .step:hover,
.page-contact .step:focus-within {
  border-color: var(--cyan-400);
  background: var(--ink-800);
}

.page-contact .step__no {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-950);
  background: var(--amber-400);
  padding: 2px 7px;
  border-radius: var(--radius);
}

.page-contact .step__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  margin: 10px 0 6px;
  color: var(--cream-100);
}

.page-contact .step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 联系渠道 ---------- */
.page-contact .channel-grid {
  margin-top: 20px;
  display: grid;
  gap: 12px;
}

.page-contact .channel-card {
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(170deg, var(--ink-900), var(--ink-950));
}

.page-contact .channel-card__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.page-contact .channel-card__value {
  margin: 10px 0 0;
  font-family: var(--font-data);
  font-size: clamp(15px, 2vw, 18px);
  line-height: 1.5;
  color: var(--cyan-400);
  word-break: break-all;
}

.page-contact .channel-card__text {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-contact .channels-note {
  margin: 18px 0 0;
  padding: 14px 16px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  font-size: 13px;
  line-height: 1.8;
  color: var(--cream-300);
  background: rgba(247, 178, 59, 0.06);
}

/* ---------- 提交前准备 ---------- */
.page-contact .prep-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .prep-list li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 4px 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-panel);
}

.page-contact .prep-list__no {
  grid-row: span 2;
  align-self: start;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--orange-500);
}

.page-contact .prep-list strong {
  font-size: 15px;
  font-weight: 700;
  color: var(--cream-100);
  letter-spacing: 0.02em;
}

.page-contact .prep-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-contact .readmore {
  margin-top: clamp(24px, 3vw, 36px);
  padding: 20px 18px;
  border-top: 2px solid var(--orange-500);
  border-radius: var(--radius);
  background: var(--brown-950);
}

.page-contact .readmore__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.01em;
  color: var(--cream-100);
}

.page-contact .readmore__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .readmore__link {
  display: block;
  padding: 9px 0;
  border-bottom: 1px solid rgba(216, 198, 164, 0.16);
  font-size: 14px;
  line-height: 1.6;
  color: var(--cream-300);
  text-decoration: none;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-contact .readmore__link:hover,
.page-contact .readmore__link:focus-visible {
  color: var(--cyan-400);
  padding-left: 6px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .step-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .direction {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 6px 16px;
    padding: 24px 22px;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(26px, 4vw, 56px);
  }

  .page-contact .flow-svg {
    display: block;
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .readmore__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 28px;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-shell {
    grid-template-columns: 258px minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .contact-index {
    position: sticky;
    top: var(--contact-sticky);
    max-height: calc(100vh - var(--contact-sticky) - 24px);
    overflow-y: auto;
  }

  .page-contact .step-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .prep-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .prep-list li:last-child {
    grid-column: span 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .direction,
  .page-contact .step,
  .page-contact .toc__link,
  .page-contact .readmore__link {
    transition: none;
  }

  .page-contact .direction:hover {
    transform: none;
  }
}
<<<END>>>